CN105536341A - Reverse osmosis water treatment system primary filter and secondary filter backwashing method - Google Patents
Reverse osmosis water treatment system primary filter and secondary filter backwashing method Download PDFInfo
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- CN105536341A CN105536341A CN201510791568.4A CN201510791568A CN105536341A CN 105536341 A CN105536341 A CN 105536341A CN 201510791568 A CN201510791568 A CN 201510791568A CN 105536341 A CN105536341 A CN 105536341A
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- filter
- backwash
- aflter
- reverse osmosis
- fillter
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Abstract
The invention discloses a reverse osmosis water treatment system primary filter and secondary filter backwashing method. The method comprises the following steps: the washing time in the backwashing step of a primary filter is shortened after single-pot sterilization of the primary filter and a second filter is completed, and backwashing is carried out once every 24h; and the washing time in the backwashing step of the secondary filter is shortened, and backwashing is carried out once every 24h. The method maximally reduces self-use water discharge on the premise of guaranteeing the water quality, so the production cost is reduced.
Description
Technical field
The present invention relates to a kind of method for treating water, specifically, relate to a kind of reverse osmosis water treatment system filter and aflter-fillter back-washing method.
Background technology
In recent years because the production capacity of Baogang constantly expands, in order to meet need of production, water supply plant increases accordingly from Huanghe water seedbed water withdrawal, meanwhile, country also puts into effect the water withdrawal of policy restriction Baogang from the Yellow River, cause the extensive magnitude of production capacity and newly-increased water withdrawal not to be directly proportional, this just requires that internal strength must be practiced hard by Baogang, deep-cuts self potential.Water supply plant, just under this overall background, is taken charge of the personal outer displacement in water ring processed joint severely, is reduced personal outer draining by various measure.Therefore improve the unreasonable link in reverse osmosis water treatment system technique, when ensureing water quality, reducing personal outer draining to greatest extent and just having become the main direction of technological transformation.
China publication number CN201210410242 discloses a kind of ultra filtering reverse osmosis process chemistry cleaning method, but this technology can not reduce personal outer draining.
Summary of the invention
Technical problem solved by the invention is to provide a kind of reverse osmosis water treatment system filter and aflter-fillter back-washing method, when ensureing water quality, can reduce personal outer draining to greatest extent, reducing production cost.
Technical scheme is as follows:
A kind of reverse osmosis water treatment system filter and aflter-fillter back-washing method, comprising:
After single tank sterilization of filter, aflter-fillter completes, reduce and just wash the time in the backwash step of a filter, and backwash in every 24 hours once;
Reduce and just wash the time in the backwash step of aflter-fillter, and backwash in every 24 hours once.
Further: to be 6 minutes by the just time of washing in an original filter backwash step, be 10 minutes by the just time of washing in the backwash step of aflter-fillter.
Compared with prior art, the technology of the present invention effect comprises:
1, the present invention compares with existing patented technology, and the most outstanding advantage is when ensureing water quality, can reduce personal outer draining to greatest extent, reduce production cost.
2, the present invention is when ensureing water quality, reduces the backwash time of first and second filter in reverse osmosis process, reduces water producing cost, decreases personal outer draining, reduces worker's labour intensity, can save water producing cost 610,000 yuan every year according to calculating.
Detailed description of the invention
Below with reference to preferred embodiment, technical solution of the present invention is elaborated.
The technique of counter-infiltration is: extract Raw Water of Yellow River → depositing reservoir clarification → metre filter → aflter-fillter filtration → active carbon filter filtration → first-stage reverse osmosis → two-pass reverse osmosis.
Reverse osmosis water treatment system filter and aflter-fillter back-washing method, step comprises:
Step 1: after single tank sterilization of filter, aflter-fillter completes, reduces and just wash the time in the backwash step of a filter, and backwash in every 24 hours once;
First set system is filter 10 once, and in assure feed water situation, No. one time filter runs 2 ~ 4 simultaneously, aflter-fillter 20, and aflter-fillter runs 8 ~ 12 simultaneously; Second cover system No. time filter 14, in assure feed water situation, run 5, aflter-fillter 18, runs 8 ~ 12 simultaneously simultaneously.
Quarterly carry out a filter, the aflter-fillter sterilization operation of system at the situation the not affecting production tank that places an order, because after sterilization, water quality improves, so determine to change the time of just washing in the backwash step of an original filter into 6 minutes from original 10 minutes, run 4, backwash in every 24 hours once simultaneously.
For a 1# filter desalination, in backwash process, the time of just washing changes 6min into by 10min.Run 2 filters, backwash 1 time in every 24 hours simultaneously.Supply-water pump flow is 1260m
3/ h.
Originally: (1260 × 10/60) ÷ 24 × 2=17.5m
3/ h
Afterwards: (1260 × 6/60) ÷ 24 × 2=10.5m
3/ h
Save: 17.5-10.5=7.0m
3/ h
For a 3# filter desalination, in water backwash process, the time of just washing changes 6min into by 10min.Run 4 filters, backwash 1 time in every 24 hours simultaneously.Supply-water pump flow is 2020m3/h.
Originally: (2020 × 10/60) ÷ 24 × 4=56.1m
3/ h
Afterwards: (2020 × 6/60) ÷ 24 × 4=33.7m
3/ h
Save: 56.1-33.7=22.4m
3/ h
Add up to: 7.0+22.4=29.4m
3/ h
Step 2: reduce and just wash the time in the backwash step of aflter-fillter, and backwash in every 24 hours once.
Changed the time of just washing in the backwash step of original aflter-fillter into 10 minutes from original 20 minutes, run 5, backwash in every 24 hours once simultaneously.
For the desalination of 1# aflter-fillter, in water backwash process, the time of just washing changes 10min into by 20min.Run 5 aflter-fillters, backwash 1 time in every 24 hours simultaneously.Supply-water pump flow is 400m
3/ h.
Originally: (400 × 20/60) ÷ 24 × 5=27.8m
3/ h
Afterwards: (400 × 10/60) ÷ 24 × 5=13.9m
3/ h
Save 27.8-13.9=13.9m
3/ h
For the desalination of 3# aflter-fillter, in water backwash process, the time of just washing changes 10min into by 20min.Run 5 aflter-fillters, backwash 1 time in every 24 hours simultaneously.Supply-water pump flow is 320m3/h.
Originally: (320 × 20/60) ÷ 24 × 5=22.2m
3/ h
Afterwards: (320 × 10/60) ÷ 24 × 5=11.1m
3/ h
Save: 22.2-11.1=11.1m
3/ h
Add up to: 13.9+11.1=25.0m
3/ h
Through the practice that half a year is many, backwash effect is very good, is that a large amount of production costs has been saved in workshop while guarantee backwash effect, and also for workshop, next step is carried out lean workshop and creates and lay a good foundation.
Save total cost:
Save the water yield altogether: 29.4+25.0=54.4m
3/ h;
Calculate with the Yellow River water price, save every year:
54.4m
3/ h × 24h × 365 day × 1.3 yuan/ton=61.95 ten thousand yuan;
Consume bactericide expense:
45500 yuan, bactericide per ton, quarterly consumes 50 kilograms, consumes 200 kilograms altogether every year.45500/1000 × 200=9100 unit.
Total saving benefit:
61.95-0.91=61.04 ten thousand yuan.
Claims (2)
1. reverse osmosis water treatment system filter and an aflter-fillter back-washing method, comprising:
After single tank sterilization of filter, aflter-fillter completes, reduce and just wash the time in the backwash step of a filter, and backwash in every 24 hours once;
Reduce and just wash the time in the backwash step of aflter-fillter, and backwash in every 24 hours once.
2. reverse osmosis water treatment system filter and aflter-fillter back-washing method as claimed in claim 1, it is characterized in that: be 6 minutes by the just time of washing in an original filter backwash step, is 10 minutes by the just time of washing in the backwash step of aflter-fillter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510791568.4A CN105536341B (en) | 2015-11-17 | 2015-11-17 | Filter of reverse osmosis water treatment system and aflter-fillter back-washing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510791568.4A CN105536341B (en) | 2015-11-17 | 2015-11-17 | Filter of reverse osmosis water treatment system and aflter-fillter back-washing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105536341A true CN105536341A (en) | 2016-05-04 |
| CN105536341B CN105536341B (en) | 2017-10-13 |
Family
ID=55816192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510791568.4A Active CN105536341B (en) | 2015-11-17 | 2015-11-17 | Filter of reverse osmosis water treatment system and aflter-fillter back-washing method |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367376Y (en) * | 2009-03-05 | 2009-12-23 | 杨海刚 | Full-automatic digital remote control water treatment device |
| EP2397209A1 (en) * | 2009-02-16 | 2011-12-21 | Kuraray Co., Ltd. | Filtering device and method of manufacturing same |
| CN203002097U (en) * | 2012-12-25 | 2013-06-19 | 攀钢集团攀枝花钢钒有限公司 | Reverse osmosis security filter system |
| CN103539288A (en) * | 2013-10-31 | 2014-01-29 | 神华集团有限责任公司 | Industrial wastewater recovery method and wastewater recovery system |
| CN204174012U (en) * | 2014-08-28 | 2015-02-25 | 宁波泽沃水处理科技有限公司 | Pure water processor |
-
2015
- 2015-11-17 CN CN201510791568.4A patent/CN105536341B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2397209A1 (en) * | 2009-02-16 | 2011-12-21 | Kuraray Co., Ltd. | Filtering device and method of manufacturing same |
| CN201367376Y (en) * | 2009-03-05 | 2009-12-23 | 杨海刚 | Full-automatic digital remote control water treatment device |
| CN203002097U (en) * | 2012-12-25 | 2013-06-19 | 攀钢集团攀枝花钢钒有限公司 | Reverse osmosis security filter system |
| CN103539288A (en) * | 2013-10-31 | 2014-01-29 | 神华集团有限责任公司 | Industrial wastewater recovery method and wastewater recovery system |
| CN204174012U (en) * | 2014-08-28 | 2015-02-25 | 宁波泽沃水处理科技有限公司 | Pure water processor |
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| Publication number | Publication date |
|---|---|
| CN105536341B (en) | 2017-10-13 |
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